fix(deps): update spring boot to v4.0.6 (#5315)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Cosimo Damiano Prete <nar92uto@gmail.com>

Author: renovate[bot]

pom.xml

@@ -47,7 +47,7 @@
         <maven.site.skip>true</maven.site.skip>
 
         <!-- used dependencies versions -->
-        <spring-boot.version>4.0.5</spring-boot.version>
+        <spring-boot.version>4.0.6</spring-boot.version>
         <spring-cloud.version>2025.1.1</spring-cloud.version>
 
         <jolokia-support-springboot.version>2.6.0</jolokia-support-springboot.version>

spring-boot-admin-server/src/main/resources/META-INF/spring-boot-admin-server/mail/status-changed.html

@@ -78,7 +78,7 @@ <h2>Status Details</h2>
         <dt th:text="${detail.key}"/>
         <dd th:unless="${detail.value instanceof T(java.util.Map)}" th:text="${detail.value}"/>
         <dd th:if="${detail.value instanceof T(java.util.Map)}">
-            <dl th:replace="${#execInfo.templateName} :: statusDetails (details = ${detail.value})"/>
+            <dl th:with="templateName = ${#execInfo.templateName}" th:replace="${templateName} :: statusDetails (details = ${detail.value})"/>
         </dd>
     </th:block>
 </dl>